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Vesnalui [34]
2 years ago
10

Could I have help with number 23 please?

Mathematics
2 answers:
vesna_86 [32]2 years ago
6 0
It’s A we did this in class today
Vlada [557]2 years ago
4 0
It’s a if you look at it close
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Tom has three times as many pencils as pens but has a total of de 100 writing utensils. How many pencils and pens does toms have
IrinaVladis [17]

Answer:

Tim has 75 pencils and 25 pens

Step-by-step explanation:

To solve this create a system of equations. To do so, first create an equation for the total number of utensils that he has. Let x equal the number of pencils and y equal the number of pens.

x+ y = 100

Now make one for the comparison of the two and solve for the constant.

x = 3y

x - 3y = 0

Now to solve the system, multiply the second equation by -1 and add them together.

x + y = 100

-x + 3y = 100

-----------------

4y = 100

y = 25

Now that we have the number of pens, find the number of pencils using an equation.

x + y = 100

x + 25 = 100

x = 75

7 0
3 years ago
Calculate the area of a dart which hits the dartboard with a force of 10 N and pressure of 2000 N/cm^2​
STALIN [3.7K]

Answer:

pressure=force/area

2000. ×area =10

area. =10/2000

area =0.005cm²

3 0
3 years ago
What are the two ratios that are equivalent to 2:9
Lisa [10]

Answer:

18:81   12:54

Step-by-step explanation:

7 0
3 years ago
What is true about all points on the y-axis in Quadrant I?
Eva8 [605]

Answer:

All have an x-coordinate of 0.

and

All are directly above the origin.

These answers are correct

Step-by-step explanation:

i did the quiz/or/assignment

6 0
3 years ago
A population of insects, in thousands, can be molded using the function (t)= 1.75(0.97)x
Dominik [7]

Question:

A population of insects, in thousands, can be modeled using the function

p(t) = 1.75(0.97)^t, where t is time in months. Which statement best

describes the population of insects?

A. The population is decaying at a rate of 3% each month.

B. The population is decaying at a rate of 25% each month.

C. The population is growing at a rate of 75% each month.

D. The population is growing at a rate of 97% each month.

Answer:

A. The population is decaying at a rate of 3% each month.

Step-by-step explanation:

Given

p(t) = 1.75(0.97)^t

Required

True statement about the function

From the options, we can see that we are to answer the question on the basis of decay and growing rates.

An exponential form is:

y=ab^x

Compare to p(t) = 1.75(0.97)^t

b= 0.97\\

If b > 1, then b = 1 + r r represents growth rate

else, b= 1-r r represents decay rate

Since b < 0.97:

0.97= 1-r

r = 1 - 0.97

r = 0.03

r = 3\%

r = 0.03

7 0
2 years ago
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